Cast ctype functions' arguments to unsigned char.

ok guenther@

1 files changed, 4 insertions, 4 deletions

diff --git a/games/hack/makedefs.c b/games/hack/makedefs.c
index 44d117efee1..af1c25a909f 100644
--- a/games/hack/makedefs.c
+++ b/games/hack/makedefs.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: makedefs.c,v 1.7 2009/10/27 23:59:25 deraadt Exp $	*/
+/*	$OpenBSD: makedefs.c,v 1.8 2015/10/24 17:43:28 mmcc Exp $	*/
 
 /*
  * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
@@ -203,12 +203,12 @@ getentry()
 	while(1) {
 		ch = nextchar();
 	swi:
-		if(isalpha(ch)){
+		if(isalpha((unsigned char)ch)){
 			ip = identif;
 			do {
 				if(ip < identif+NSZ-1) *ip++ = ch;
 				ch = nextchar();
-			} while(isalpha(ch) || isdigit(ch));
+			} while(isalpha((unsigned char)ch) || isdigit((unsigned char)ch));
 			*ip = 0;
 			while(ch == ' ' || ch == '\t') ch = nextchar();
 			if(ch == '(' && !inparens && !stringseen)
@@ -294,5 +294,5 @@ getentry()
 void
 capitalize(char *sp)
 {
-	*sp = (char)toupper(*sp);
+	*sp = (char)toupper((unsigned char)*sp);
 }